Lake Powell Water Database

powell
powell

The earliest data is from Monday, March 11th, 1963
The most recent data is from Tuesday, September 30th, 2025

Days where outflow from Lake Powell was 8220.00 cfs

DATE MEASURED ELEVATION CONTENT INFLOW OUTFLOW HIGH TEMP LOW TEMP WATER TEMP

Tue, Sep 16, 2003 3604.53 12,187,589 8180 8220 91.9 71.1 76.0

Mon, Dec 17, 1979 3672.49 20,368,510 9293 8220 49.0 22.0 --

Tue, Apr 03, 1979 3635.98 15,683,675 24596 8220 57.0 36.0 --

Mon, Jul 23, 1973 3642.75 16,643,286 31401 8220 95.0 65.0 --

Mon, Oct 25, 1971 3614.12 13,447,046 8439 8220 60.0 43.0 --

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Measurements are taken at 11:59 pm of the date listed
Temperature data is from Wahweap, AZ
Water temperature data is from wayneswords.com*
CHANGE represents water elevation change from previous day

Units used in each measurement:
Elevation - Feet above sea level
Change - Feet difference over previous measurement
Content - Acre Feet
Inflow - Acre Feet per day
Outflow - Acre Feet per day
All Temps - Degrees Farhenheit
The Water Year runs from October 1 to September 30 of the next year
Acre Feet = * Flow CFS
TP = Total Precipitation

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Water data courtesy of US Bureau of Reclamation
*Air temp data is sourced from (Prev 24 Hr Extremes): Weather
Weather forecast for
All data is provisional and subject to review and modification
USBR Source Data